US4617147AExpiredUtility

Process for preparation of solid perfumes

48
Assignee: SHIBANAI ICHIROPriority: Mar 1, 1984Filed: Feb 22, 1985Granted: Oct 14, 1986
Est. expiryMar 1, 2004(expired)· nominal 20-yr term from priority
Inventors:Ichiro Shibanai
A61K 8/4913A61L 9/048A61K 8/731A61Q 13/00A61K 8/498A61L 9/042
48
PatentIndex Score
13
Cited by
5
References
1
Claims

Abstract

The present invention relates to a process for the preparation of solid perfumes, which comprises mixing a mixture formed by adding a perfume oil to an alcohol solution containing 1 to 5% of hydroxypropylcellulose with a saturated solution of dibenzylidenesorbitol in N-methyl-2-pyrrolidone to inactivate the perfume oil and the alcohol and form a solid perfume which is hardly volatile and has a persistent fragrance.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A process for the preparation of solid perfumes, which comprises mixing a mixture formed by adding a perfume oil to an alcohol solution containing 1 to 5% of hydroxypropylcellulose with a saturated solution of dibenzylidenesorbitol in N-methyl-2-pyrrolidone to form a gel-like solid.

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